Zinc fertilizer and phosphorus fertilizer

When zinc Zn Zn fertilizer and phosphate fertilizer are mixed together, zinc phosphate which is not easily dissolved in water is formed. The roots of crops are difficult to absorb and utilize. Therefore, when applying zinc sulfate, it is necessary to avoid contact with phosphate fertilizers such as superphosphate, heavy superphosphate, diammonium phosphate and potassium dihydrogen phosphate, and it is not possible to mix them together.

With zinc sulphate as the base fertilizer application, zinc sulphate and farmyard manure can be uniformly mixed and applied, and phosphate fertilizer can be applied at the time of sowing. It is also possible to uniformly apply the phosphate fertilizer to the farmyard manure as a base fertilizer, and then apply zinc sulfate when planting. This creates a barrier between the zinc fertilizer and the phosphate fertilizer to prevent them from coming into contact with each other.

When sowing corn, zinc sulphate is used as seed dressing fertilizer. It is best to use phosphate fertilizer in farmyard manure as base fertilizer to prevent zinc fertilizer from contacting with phosphate fertilizer. When the corn seedling stage is sprayed with an aqueous solution of zinc sulphate to control "flower white seedlings", it cannot be mixed with potassium dihydrogen phosphate or calcium perphosphate leaching solution.

The application of zinc sulphate in rice, whether it is base application, spraying, or field application of fine soil, should also avoid contact with phosphate fertilizer when fertilizing.

Source: Agriculture Online Author: Chen Maochun
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About Materials: We have 3 types of paper.

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